Connecting structure of manual unlatching device of cabin door

Abstract

The utility model provides a hatch door manual unlatching device connecting structure, which belongs to the field of airplane equipment installation and particularly comprises an unlatching device, a connecting body, a bulkhead of an airplane body, two structural parts and a middle part, the unlatching device is connected with the bulkhead through the connecting body and is installed on an airplane, and the structural parts are arranged on the left side and the right side of the lower end of the connecting body. A middle part is arranged between the two structural parts, and the left end and the right end of the middle part are fixedly connected with the structural parts. The small-size and large-load-bearing structure is generally suitable for a stress structure in a large-load-bearing environment in a small space, especially for parts, with high weight requirements, of airplane airborne equipment, and therefore the small-size and large-load-bearing structure has good market space in the field of aviation equipment installation.

Description

Technical Field

[0001] The utility model belongs to the field of aircraft equipment installation, and in particular relates to a connection structure of a manual unlatching device for a cabin door. Background Art

[0002] The fire extinguisher launch hatch has an automatic opening and closing device. In order to prevent the launch hatch from opening and closing normally when the automatic control fails, a manual opening and closing device is installed at the same time. The launch device is operated by a steel cable pulley to open and close the hatch within a limited time. Due to the influence of various structures near the hatch, the installation space for the manual unlatching device is very limited, and it is finally installed between two bulkheads with a spacing of only 200mm.

[0003] During the manual unlatching operation, the load transmitted to the connection structure by the device reaches 1.4 tons, and there is bending moment. The connection structure needs to be designed in the middle of the 200mm spacing of the bulkhead, and can withstand the large load requirements of the manual unlatching device, and has a certain weight, which requires a high degree of difficulty in structural design. Summary of the invention

[0004] The utility model aims to overcome the problems of insufficient load on a manual unlocking device and complex structure of the above-mentioned existing connection structure, and provides a connection structure for a manual unlocking device for a hatch.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A connection structure for a manual door unlatching device comprises an unlatching device, a connecting body is arranged outside the unlatching device, the two outer ends of the connecting body are connected to the bulkhead of an aircraft body, the unlatching device is connected to the bulkhead through the connecting body and is installed on the aircraft, structural parts are arranged on the left and right sides of the lower end of the connecting body, an intermediate part is arranged between the two structural parts, and the left and right ends of the intermediate part are connected and fixed to the structural parts.

[0007] The connector is a bilaterally symmetrical box-shaped structure.

[0008] The structural member is an "I"-shaped member, and two structural members are arranged side by side at the bottom of the connecting body. The two structural members are connected to the aircraft body bulkhead through the connecting body.

[0009] The structural member consists of two transverse partitions and one longitudinal partition. The two transverse partitions are respectively connected to the two ends of the longitudinal partition, and the transverse partition and the longitudinal partition are perpendicular to each other.

[0010] The structural member also includes a vertical plate, which is arranged on a side of the structural member close to the connecting body, and the vertical plate is connected to the aircraft body bulkhead through the connecting body.

[0011] The structural member also includes a horizontal plate. The horizontal plates of the two structural members are arranged side by side to form a plane. The formed plane is at the bottom of the unlocking device and is connected to the unlocking device. The horizontal plate is perpendicular to the transverse partition and the longitudinal partition.

[0012] The structural member is connected and fixed with the middle member through a transverse partition plate. The two structural members are attached to the transverse partition plate and the longitudinal partition plate on one side to form a square groove, and the middle member is arranged in the groove.

[0013] The middle piece is an "I"-shaped component, consisting of two transverse ribs and one longitudinal rib. The transverse ribs are arranged at both ends of the longitudinal ribs. The transverse ribs and the longitudinal ribs are perpendicular to each other. The left and right ends of the two transverse ribs are respectively connected to the transverse partitions on the left and right structural members.

[0014] The middle piece also includes a lap plate, which is arranged on the transverse vertical ribs and the longitudinal vertical ribs. The lap plate and the transverse vertical ribs and the longitudinal vertical ribs are perpendicular to each other.

[0015] The upper surface of the lap plate is in contact with the bottom surface of a square groove formed by the transverse partition and the longitudinal partition on one side of the two structural members.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model discloses a connection structure of a manual hatch unlatching device, in which a connecting body is arranged outside the unlatching device, and the lower part of the connecting body is connected by structural members, and the structural members are further connected and fixed by intermediate members, so as to form a structure stacked layer by layer, and each layer is connected and fixed to each other, and there are mutual forces between the layers, so that the load capacity of the connection structure is greatly enhanced. At the same time, the same structural members are arranged on the left and right sides of the lower end of the connecting body, and an intermediate member is arranged between the two structural members, so that the overall structure is left-right symmetrical. This structure and connection method are simple, and the symmetrical structural design further enhances the load capacity of the connecting body.

[0018] Furthermore, the connector directly connected to the unlocking device is a bilaterally symmetrical box-type structure, which is simple and uncomplicated, forming an integral load-bearing structure that can withstand the large load and large bending moment transmitted by the manual unlocking device, thereby improving the load capacity of the unlocking device.

[0019] Furthermore, the structural member is an "I"-shaped member, which is arranged in parallel on the left and right sides at the lower end of the connector. The connection method is simple and easy to operate, and both structural members are connected to the aircraft body bulkhead, making the connection structure more stable.

[0020] Furthermore, the transverse partitions, longitudinal partitions and horizontal plates of the structural members are perpendicular to each other in space. This connection method improves the stability of the connection and further strengthens the stability of the connection structure.

[0021] Furthermore, an unlatching device is placed on a plane formed by a horizontal plate on a structure in which the transverse partitions, the longitudinal partitions and the horizontal plates are perpendicular to each other in space, thereby enhancing the load capacity of the unlatching device.

[0022] Furthermore, the two structural members are connected and fixed by an intermediate member, and the transverse and longitudinal ribs of the intermediate member are in an "I" shape. This structural design improves the supporting and fixing effect on the two structural members connected thereto, thereby improving the stability of the connection and further effectively enhancing the load capacity of the connection structure.

[0023] Furthermore, the joint between the middle member and the structural member is a flat plate, which maximizes the joint area, increases the supporting force of the contact surface, and improves the stability and load capacity of the connection structure.

[0024] Furthermore, the transverse ribs and longitudinal ribs, and the transverse partitions and longitudinal partitions of the intermediate parts and the structural parts have a reasonable layout of ribs and an optimized design with minimal materials to reduce weight as much as possible, providing a relatively light structure that meets the strength requirements for the connection of the manual unlatching device of the aircraft medium door on the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The figure is a schematic diagram of the installation of the release device on the bulkhead of the aircraft body;

[0026] Figure 2 It is a schematic diagram of the connection structure between the connector and the bulkhead of the aircraft body;

[0027] Figure 3 It is a schematic diagram of the connection between the unlocking device and the connecting body;

[0028] Figure 4 It is a schematic diagram of the components of the connector;

[0029] Figure 5 It is a schematic diagram of the structural form of the structural parts;

[0030] Figure 6 This is a schematic diagram of the structure of the middleware.

[0031] Explanation of numbers: 1. Unlatching device; 2. Bulkhead of the aircraft body; 3. Connector; 4. Structural member; 5. Intermediate member; 6. Vertical plate; 7. Horizontal plate; 8. Longitudinal partition; 9. Transverse partition; 10. Overlap plate; 11. Longitudinal rib; 12. Transverse rib. DETAILED DESCRIPTION

[0032] In order to further understand the content of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the embodiments are only for explaining the utility model and are not intended to limit it.

[0033] See also Figure 1 , Figure 2 and Figure 3 The aircraft's unlocking device 1 has a connector 3 outside the unlocking device. The connector 3 is a box-shaped structure that is symmetrical on the left and right. The unlocking device 1 is arranged inside the box-shaped structure of the connector 3. Both ends of the connector 3 are connected to the bulkhead 2. The unlocking device 1 is installed inside the bulkhead 2 of the aircraft body through the connector 3.

[0034] See also Figure 4 , Figure 5 and Figure 6 The structural member 4 is an "I"-shaped member. Two structural members 4 are arranged side by side on both sides of the lower end of the connector 3. A vertical plate 6 is arranged on one side of the two structural members 4 close to the connector 3. The vertical plate 6 is connected to the bulkhead 2 of the aircraft body. The structural member 4 is provided with a horizontal plate 7. The horizontal plates 7 of the two structural members 4 are arranged side by side to form a plane. The aircraft's unlocking device 1 is placed on the plane. Two transverse partitions 9 and a longitudinal partition 8 are arranged below the horizontal plates 7 of the structural member 4. The two transverse partitions 9 are arranged at both ends of the longitudinal partition 8. The transverse partitions 9, the longitudinal partitions 8 and the horizontal plates 7 are perpendicular to each other. The two structural members The transverse partition plate 9 and the longitudinal partition plate 8 on the side of the structural member 4 are bonded to form a square groove, and the middle member 5 is arranged in the groove. The middle member 5 is an "I"-shaped member, and the middle member 5 is provided with a lap plate 10, which is bonded to the bottom surface of the groove. Two transverse ribs 12 and one longitudinal rib 11 are arranged below the lap plate 10. The transverse ribs 12, the longitudinal ribs 11 and the lap plate 10 are perpendicular to each other. The two transverse ribs 12 of the middle member are respectively connected to the transverse partition plate 9 on the side of the structural member 4, and the two connection structures 4 are connected by connecting with the transverse ribs 12 of the middle member 5.

[0035] A hatch door manual unlatching device connection structure, and its connection method:

[0036] Two structural members 4 are arranged side by side at the lower end of a left-right symmetrical connecting body 3. Both structural members 4 are provided with two transverse partitions 9 and one longitudinal partition 8. The transverse partitions 9 and the longitudinal partitions 8 are perpendicular to each other. The transverse partitions 9 and the longitudinal partitions 8 on one side of the two structural members 4 are attached to form a square groove. An intermediate member 5 is arranged in the groove. The intermediate member 5 is provided with a lap plate 10. The lap plate 10 is attached to the bottom surface of the groove. Two transverse ribs 12 and one longitudinal rib 11 are arranged below the lap plate 10. The transverse ribs 12, the longitudinal ribs 11 and the lap plate 10 are perpendicular to each other. The transverse ribs 12 of the intermediate member 5 are correspondingly connected to the transverse ribs 9 forming the grooves in the two structural members 4, thereby, the two structural members 4 are connected together.

[0037] Horizontal plates 7 are also provided on the transverse partitions 9 and the longitudinal partitions 8 of the two structural members 4. The horizontal plates 7 are arranged side by side to form a plane, and the unlatching device 1 is placed on this plane so that the unlatching device 1 is inside the connecting body 3. Vertical plates 6 are provided on one side of the two structural members 4 near the two ends of the connecting body 3. The vertical plates 6 are connected to the bulkhead 2 of the aircraft body. The connecting body 3 is connected to the bulkhead 2 of the aircraft body through the vertical plates 6. Therefore, the unlatching device 1 is connected to the bulkhead 2 of the aircraft body through the connecting body 3 and installed in the fuselage.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the utility model should be included in the scope of protection of the claims of the utility model.

Claims

1. A hatch door manual unlocking device connection structure, characterized in that: The invention comprises an unlatching device (1), wherein a connecting body (3) is arranged outside the unlatching device (1), and the two outer ends of the connecting body (3) are connected to the bulkhead (2) of the aircraft body. The unlatching device (1) is connected to the bulkhead (2) through the connecting body (3) and installed on the aircraft. Structural members (4) are arranged on both sides of the lower end of the connecting body (3), and an intermediate member (5) is arranged between the two structural members (4). The left and right ends of the intermediate member (5) are connected and fixed to the structural member (4).

2. A hatch door manual unlocking device connection structure according to claim 1, characterized in that: The connector (3) is a box-shaped structure that is bilaterally symmetrical.

3. A hatch door manual unlocking device connection structure according to claim 1, characterized in that: The structural member (4) is an "I"-shaped member, and two structural members (4) are arranged side by side at the bottom of the connecting body (3). The two structural members (4) are connected to the aircraft fuselage bulkhead (2) through the connecting body (3).

4. A hatch door manual unlocking device connection structure according to claim 3, characterized in that: The structural member (4) is composed of two transverse partitions (9) and a longitudinal partition (8). The two transverse partitions (9) are respectively connected to the two ends of the longitudinal partition (8), and the transverse partition (9) and the longitudinal partition (8) are perpendicular to each other.

5. A hatch door manual unlocking device connection structure according to claim 4, characterized in that: The structural member (4) also includes a vertical plate (6), which is arranged on a side of the structural member (4) close to the connecting body (3), and the vertical plate (6) is connected to the aircraft fuselage bulkhead (2) through the connecting body (3).

6. A hatch door manual unlocking device connection structure according to claim 5, characterized in that: The structural member (4) also includes a horizontal plate (7). The horizontal plates (7) of the two structural members (4) are arranged side by side to form a plane. The formed plane is located at the bottom of the unlatching device (1) and is connected to the unlatching device (1). The horizontal plate (7) is perpendicular to the transverse partition plate (9) and the longitudinal partition plate (8).

7. A hatch door manual unlocking device connection structure according to claim 3, characterized in that: The structural member (4) is connected and fixed to the middle member (5) via a transverse partition (9); the two structural members (4) are attached to the transverse partition (9) and the longitudinal partition (8) on one side to form a square groove; the middle member (5) is arranged in the groove.

8. A hatch door manual unlocking device connection structure according to claim 7, characterized in that: The middle member (5) is an "I"-shaped member, and the middle member (5) has two transverse ribs (12) and one longitudinal rib (11), the transverse ribs (12) are arranged at both ends of the longitudinal rib (11), the transverse ribs (12) and the longitudinal ribs (11) are perpendicular to each other, and the left and right ends of the two transverse ribs (12) are respectively connected to the transverse partitions (9) on the left and right structural members (4).

9. A hatch door manual unlocking device connection structure according to claim 8, characterized in that: The middle member (5) further comprises a lap plate (10), which is arranged on the transverse vertical ribs (12) and the longitudinal vertical ribs (11), and the lap plate (10) and the transverse vertical ribs (12) and the longitudinal vertical ribs (11) are all perpendicular to each other.

10. A hatch door manual unlocking device connection structure according to claim 9, characterized in that: The upper surface of the lap plate (10) is in contact with the bottom surface of a square groove formed by the transverse partition (9) and the longitudinal partition (8) on one side of the two structural members (4).

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